Unconventional capacity increase kinetics of a chemically engineered SnO2 aerogel anode for long-term stable lithium-ion batteries

2020 ◽  
Vol 8 (17) ◽  
pp. 8244-8254 ◽  
Author(s):  
Sung Mi Jung ◽  
Dong Won Kim ◽  
Hyun Young Jung

SnO2 aerogel anode delivers the highest reversible capacity of about 2031 mAh g−1 with a 200% capacity recovery and presents the superior cyclability over 10 000 cycles under high C-rates without evident capacity fading tendency.

2017 ◽  
Vol 41 (13) ◽  
pp. 5380-5386 ◽  
Author(s):  
Xinping Liu ◽  
Renpin Liu ◽  
Lingxing Zeng ◽  
Xiaoxia Huang ◽  
Xi Chen ◽  
...  

A V2O3/carbon-nanofiber composite was initially synthesized, which exhibited large reversible capacity and excellent long-term cycling performance for lithium-ion batteries.


Author(s):  
Zheng Wang ◽  
zhen Ma ◽  
Xiongfeng Hu ◽  
Ruirui Zhao ◽  
Junmin Nan

Abstract Mathematical models to evaluate and predict the performance degradation of lithium-ion batteries (LIBs) with different status of charge (SOC) in long-term high-temperature storage which are also applicable for setting rational storage conditions (temperature, SOC, and time) of LIBs were established. Parameters including voltage drop (Delta V), reversible capacity (RC) loss, and internal impedance (IMP) increase of LIBs under different temperature (60, 45, and 25°C) are used to allow the model to clarify its function. According to the results obtained from commercial 18650 cylindrical batteries with LiNi0.33Co0.33Mn0.33O2 cathode, the mathematical relationship between Delta V and storage days (x) is fitted into a simple formula: Delta V =m.In(x)-n, and similarly, RC loss = m'.exp (n'.x) and IMP increase = m''.xn'' can also be acquired. In these formulas, m, n, m', n', m'' and n'' are constants when temperature and SOC are fixed. If only the temperature is fixed, the value of these constants can be derived into a function with SOC (y), respectively, while further plugging the function into the calculation formula of Delta V, RC loss, and IMP increase, respectively, allows the mathematical models to be set up.


2020 ◽  
Vol 44 (33) ◽  
pp. 14278-14285 ◽  
Author(s):  
Hongqiang Wang ◽  
Yajun Ding ◽  
Jiaying Nong ◽  
Qichang Pan ◽  
Zhian Qiu ◽  
...  

A 2D Si@GC nanosheet composite is synthesized through a facile ball-milling method using NaCl as a bifunctional template, which can achieve a high reversible capacity and long-term cycling performance when evaluated as an anode material for LIBs.


Nanoscale ◽  
2019 ◽  
Vol 11 (35) ◽  
pp. 16253-16261 ◽  
Author(s):  
Huanhui Chen ◽  
Jiao He ◽  
Guanxia Ke ◽  
Lingna Sun ◽  
Junning Chen ◽  
...  

The MoS2–SnO2 heterostructures are encapsulated into carbon nanofibers via a simple and scalable process. The binder-free and robust structure exhibit high reversible capacity, long-term cycling stability, and excellent rate capability.


Energy ◽  
2021 ◽  
Vol 222 ◽  
pp. 119913
Author(s):  
Jiasheng Chen ◽  
Xuan Liang Wang ◽  
En Mei Jin ◽  
Seung-Guen Moon ◽  
Sang Mun Jeong

2020 ◽  
Vol 846 ◽  
pp. 156437
Author(s):  
Yan Zhang ◽  
Bisai Li ◽  
Bin Tang ◽  
Zeen Yao ◽  
Xiongjie Zhang ◽  
...  

2011 ◽  
Vol 21 (24) ◽  
pp. 8591 ◽  
Author(s):  
Zunxian Yang ◽  
Guodong Du ◽  
Zaiping Guo ◽  
Xuebin Yu ◽  
Zhixin Chen ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42922-42930 ◽  
Author(s):  
Diganta Saikia ◽  
Tzu-Hua Wang ◽  
Chieh-Ju Chou ◽  
Jason Fang ◽  
Li-Duan Tsai ◽  
...  

Ordered mesoporous carbons CMK-3 and CMK-8 with different mesostructures are evaluated as anode materials for lithium-ion batteries. CMK-8 possesses higher reversible capacity, better cycling stability and rate capability than CMK-3.


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